Pumping apparatus



E. [L DUER. PUN'IPING APPARATUS. APPLICATION FILED ocr. 10. 1921.l

1,431,105. Patented 001:. 3, 1922.

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`A E n' Q E. C. DUEH.

Pun/wma APPARATUS. APPLICATION FlLED OCTvl L0. 1921.

. l A3 1, 1 O5 Patented Oct. 3, 1922,

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Patented @et 3, i922.

wir t fr z" i EDWARD C. DUER, 0F VENICE, CALIFORNIA..

PUMPENG APPARATUS.

Application filed october 10, i921.

To all whom t may concern Be it known that l, EDWARD C. DUER, a citizen ot the United States, residing in Venice, in the county ot Los Angeles and State of California, have invented certain new and useful improvements in Pumping Apparatus, oi which the following` is a specification.

This invention relates to pumping apparatus of the kind in which the flow ot' water, oil or other liquid is maintained without the aid oit' vacuum or air pressure by valved pistons operating in pipes at different speeds and in which the liquid is lifted by the pistons by successive impulses. The object of the invention is to provide novel means for admitting the liquid to the pipes and for raising it to the point oi delivery and a further object oi the invention is to provide novel and improved means whereby two or more pumps may be simultaneously operated in such manner as to provide a counterbalancing of the liquid and the weight et the pumps, the pumps being operated in such manner that a minimum amount of power is required, rlhe construction oi the apparatus is such as to operate to litt the liquid from any desired depth without the aid of air pressure or vaccum and the iicw of liquid is made continuous. The apparatus diiiers from force pumps in which a rapid or forceful flow ot the liquid is desired and it is especially intended for raising water from wells, pits and other places on farm lands and oil fields for irrigating purposes, but the apparatus may be used for raising liquids ont various kinds in various places.

ln carrying out my invention in the pre- `terred way, l employ duplicate pumping. apparatus consisting oi two pipes or casings arranged side by side and in each of these pipes or casings l arrange .two pistons having piston rods extending up through the casing to mechanism which operates the pistons at different speeds and to different extents. Each piston is provided with valves opening upwardly and the arrangement is such that on the down stroke of the pistons the lower one moves faster and further than the upper one and the liquid passes through the lower piston and enters in the easing between the upper and lower pistons. it this time the water in the casing above the pistons rests on the upper piston. On the upstroke ot the twol pistons the Serial No. 506,865.

lower piston moves iaster than the upper one and further. At this time the valves in the lower piston are closed. The valves in the upper piston remain open until the lower piston arrives close to the upper one, and the liquid is lifted by the lower piston and discharged through the upper piston and through a suitable discharge opening. ln this waj,T liquid is raised from any desired depth, the apparatus bein' entirely practicable tor raising water three hundred feet or more and for raising oil three thousandy Jreet or more, As before stated, in order to conterbalance the weight of the water and the operating mechanism, l employ two sets ot pumping' apparatus which are connected to be operated simultaneously by the same power and in such manner that the weight of one counterbalancesthat of thel other. The apparatus is so organized that when one set of pistons in one casing is being moved downward the other set is being` moved upward. The mechanism Jfor operating the pistons comprises a walking beam mounted in a suitable trame and on suitable standards to turn about a horizontal axis. rlhe walking beam at one end is link-connected with the piston rod ot' the lower piston and is connected by a slot and pin connection with the piston rod of the upperpiston. rlhe piston rods of the other pump are similarly connected to the opposite end ot the walking beam, which latter is provided with an arm to which power is applied to oscillate the walking beam and operate the pistons.

My improvements are illustrated in the accompanying drawings, in which Figure l is a view, partly in iront elevation, and partly in section oi' the apparatus;` l

Figure 2 is a side elevation of the same; Figure is a view similar to Fig. l, but showing the operating mechanism in a diftcrent position or one iu which the pistons lin the two casings arel at the same level;

vFigure is a detail view in section and on an enlarged scale showing more clearly the construction of the pistons and their valves; and

.liigure 5 shows a transverse section on the line 5-5 of F ig. l.

lt will be understood that the apparatus is intended to raise water, oil or other liquids from considera-ble depth and the pumping apparatus is suitably mounted on the `are ball valves e4.

ground level, the piston casings passing through the ground to the required depth and tl e operating mechanism being located above ground.

A suitable platform A may be employed on the ground and pipes or casings B are sunlr the required distance to the water, oil or liquid to be raised. Thesepipesfor casings B may be connected with the platform at in any suitable way and these pipes or casings may be connected by branchesto a delivery pipe C in the manner shown in Fig. l, at B or the casing B on one side of the apparatus may be connected with the casing- B on the other side of the apparatus by a crosslconnection B and theV liquid from both casings may be dischargedA through a delivery pipe D. There arextwo pistons E, F, in each casing B and these pistons are connected with the piston-operating mechaL nism above the ground level. This mechanism comprises a walking beam Gr, which is pivotally mounted at g on standards H. The walking beam has a downwardly eX- tending` arm J, which is connected to a rod K. This rodvmay be operated by any suitable engine to oscillate the walking beam about its horizontal axis. The piston E is connected by a rod L to a shoe M', which is adapted to move vertically in the frame N. This' shoe is connected by the link O with the outer portion of one end of the walking beam. The piston F is connected by a piston rod P with the walking beam between its middle portion and its outer end by a slot and pin connection indicated at- As the walking beam is operated the pistons E and F are reciprocated vertically, but by reason of the connections shown the piston E is moved faster and to a greater extent than the piston F. They, however, move downwards at the same time and upwards at the saine time. The pistons E and F in the two pumps are constructed and operated in the same way. As indicated in Fig. 4 the piston E comprises a casing e, which has openings e in it and there is a partition e3, which has openings through it and above the partition there Above the ball valves there are stops e2 in the piston which limit the upward movement of the balls. The rodL extends through a central sleeve of the piston E and is secured'rmly thereto. The piston F is of the same general construction as the piston E, having openings f through itl and a partition f3, and this piston is equipped with ball valves ft and stops f2. The piston F, however, has a central sleeve f5, which is not secured to the rod L, but the rod Lpassesfreely through it. The piston F isfrmly attached to a part P1 Hofthe piston rod P'whicli, as shown in Figa, is tubular, permitting the pist-on rod Lito move freely itf. The two rods are ,so formed that they may operate simultaneously, but independently of each other. The rods pass through a closure m, which prevents the liquid from rising above the cross connection B of the pipes. The rods pass through frames Q., which serve to guide the rods and these frames may be connected with. the standards H by brackets y. lt will be observed that each side of the frame N comprises two beams or rods and the shoe M operates betweenthem. The upper end of the rod F has a loop formed as indicatedV in Fig. 2te straddle the walking beam. The slot and pin connection is shown in Fig. 2 at 0. The rod l? is attached to the tube P', to which the piston F is secured by straps or other suitable devices p,- as indicated in Fig. 1. The tube P may be of any suitable length. In this way it will be'observed that the rods P and L may be arranged side by side, the rod L passing throughthe tube P', while the rod P is set to one side of the rod L. Inv this way the two rods may operate without interference.

In Fig. l the pistons of the right-hand side of the apparatus are shown in their uppermost position and the pistons on the left-hand side in their lowermost position. The walkingbeam on the right-hand side of the apparatus is raised to its full extent and is ready to commence a down strolre. On the down strole of this end of the wallring beam the pistons E and F are forced downwards. The piston E travels faster than the piston F and moves further. As the piston E descends, the valves e4 open.l water is admitted through the casing B and passes through the piston into the space between the two pistons E and F. The valves f4 in the piston F remain closed. When the pistons reach the position shown at the left-hand side of the apparatus in Fig. l, water is contained between the two pistons and on the up stroke the valves et of the piston E close and liquid is lifted and is forced through the piston F into the casing above said piston F. Then the two pistons have reached the position shown at the right-hand side of Fig. l, the liquid is held in the casing B above the pistons. By the repeated operation of the pistons water is thus lifted and forced out through the discharge pipe C or D. lt will be observed. that the construction of the apparatus is such that continuous flow of liquid may be main tained. As one set of pistons is descending the other set is rising and by rapid operation of the mechanism a continuous flow is produced. It will be understood that this flow is not with any great force and the liquid is not discharged at a distance, but the apparatus is very useful for use in oil fields and farm lands, where liquid may be drawn from various depths and delivered on the land, or to` suitableV receptacles. The water level in Figs. 1j and 3 is indicated et W by the Otted llO lines. lt will be understood that the casings descend into the water wherever it be located. Any back iiow following the downward movement oi' the pistons does not interfere with their operation because when the pistons descend the valves j in the piston F are closed and the liquid does not pass by this piston. When the pistons commence to rise the liquid is forced through the piston F and causes the back iiow liquid to be expelled and an additional supply of liquid to enter the casing above the upper piston. No liquid ever passes downwards past the valve F.

By constructing the apparatus in the manner shown and above described, and operating it in the way indicated, the weight of the pistons and their actuating apparatus and the weight of the water is counterbalanced so that comparatively small power is required to operate the pumps. A single pump may be used in some cases where power is abundant or is not a consideration, but I prefer to employ duplicate pumps, as illustrated. It will also be understood that the number of pumps may be multiplied, if desired, and all operated by the same power, the pumps being arranged in pairs or in an equivalent way to provide the counterbalancing eiiect hereinbetore eX- plained. When using one pump a counterbalancing weight may be employed on one side of the walking beam.

l claim as my invention:

l. Pumping apparatus, comprising a tubular casing, upper and lower pistons provided with valves and mounted to reciprocate therein, a walking beam, a piston rod extending from the lower piston in the casing, a link connection between the upper end of this piston rod and the outer end of the walking beam, a piston rod connected with the upper piston, and a slot and pin connection between this piston rod and the walking beam.

2. Pumping apparatus comprising a plurality ot tubular casings, upper and lower valved pistons in each casing, a walking beam, a piston rod extending from each lower piston, means for connecting these piston rods with the ends of the walking beam, a piston rod extending 'from each upper piston, andmeans connecting these piston rods with the walking beam at points nearer its center, whereby the pistons in one casing are raised as the others are lowered, and whereby the upper pistons reciprocate more slowly7 than the lower.

3. Pumping apparatus comprising a plurality of tubular casings, upper and lower` pistons having valves and mounted to reciprocate in each casing, a walking beam, piston rods extending from the lower pistons, link connections between these piston rods and the ends of the walking beam, piston rods connected with the upper pistons, and slot and pin connections between these piston rods and the walking beam.

In testimony whereof, I have hereunto subscribed my name.

EDWARD C. DUER. 

